Srimad Bhagavatam Canto 07, Chapter 15, Text 53

SB 7.15.53

indriyani manasy urmau
 vaci vaikarikam manah
vacam varna-samamnaye
 tam omkare svare nyaset
omkaram bindau nade tam
 tam tu prane mahaty amum
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The mind is always agitated by waves of acceptance and rejection. Therefore all the activities of the senses should be offered into the mind, which should be offered into one’s words. Then one’s words should be offered into the aggregate of all alphabets, which should be offered into the concise form omkara. Omkara should be offered into the point bindu, bindu into the vibration of sound, and that vibration into the life air. Then the living entity, who is all that remains, should be placed in Brahman, the Supreme. This is the process of sacrifice.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The mind is always agitated by acceptance and rejection, which are compared to mental waves that are constantly tossing. The living entity is floating in the waves of material existence because of his forgetfulness. Srila Bhaktivinoda Thakura has therefore sung in his Gitavali: miche mayara vase, yaccha bhese’, khaccha habudubu, bhai. “My dear mind, under the influence of maya you are being carried away by the waves of rejection and acceptance. Simply take shelter of Krsna.” Jiva krsna-dasa, ei visvasa, karle ta’ ara duhkha nai: if we simply regard the lotus feet of Krsna as our ultimate shelter, we shall be saved from all these waves of maya, which are variously exhibited as mental and sensual activities and the agitation of rejection and acceptance. Krsna instructs in Bhagavad-gita (18.66):
 
sarva-dharman parityajya
 mam ekam saranam vraja
aham tvam sarva-papebhyo
 moksayisyami ma sucah
 
“Abandon all varieties of religion and just surrender unto Me. I shall deliver you from all sinful reaction. Do not fear.” Therefore if we simply place ourselves at the lotus feet of Krsna by taking to Krsna consciousness and keeping always in touch with Him by chanting the Hare Krsna mantra, we need not take much trouble in arranging to return to the spiritual world. By the mercy of Sri Caitanya Mahaprabhu, this is very easy.
 
harer nama harer nama
 harer namaiva kevalam
kalau nasty eva nasty eva
 nasty eva gatir anyatha
Srimad Bhagavatam Canto 07, Chapter 15, Text 52
Srimad Bhagavatam Canto 07, Chapter 15, Text 54